TPC-H

From PostgreSQL wiki

The TPC-H Benchmark is a popular one for comparing database vendors. It's possible to run the TPC-H data set on PostgreSQL without having a formal testing kit (although there is DBT-3, a work in progress to provide a full kit). The results have generally been disappointing, for reasons that aren't necessarily relevant in the real world. PostgreSQL is missing some of the things needed to do well on this benchmark, whereas proprietary database vendors are so focused on it they will "game" TPC-H runs (add optimizations specifically aimed at it) to make absolutely sure they do well.